The submersible level sensor is designed for accurate and continuous liquid level measurement based on hydrostatic pressure technology. It supports measuring ranges from 0 to 50 meters and provides reliable water level monitoring for groundwater wells, reservoirs, storage tanks, and industrial liquid applications.

Wide Measuring Range up to 50m for Various Liquid Level Measurement

Reliable Water Level Monitoring for Multiple Application
The SISCO submersible level transmitter is widely applied in water resource management and industrial liquid measurement, including agricultural irrigation, dams, hydroelectric power stations, water tanks, reservoirs, groundwater wells, and wastewater treatment plants. It helps users achieve real-time and accurate liquid level monitoring with reliable performance.
| Model | SISCO-SLT-PT3811 |
| Measuring Range | 0-5m, 0-10m, 0-20m. 0-30m, 0-40m, 0-50m |
| Accuracy | 0.5%FS, 1.0%FS |
| Output Signal | 4-20mA, RS485 |
| Power Supply | 24VDC |
| Electrical Connection | Direct Lead Wire, 2088 Junction Box |
| Load Capacity | Current Output: R = (U-8V)/0.020Ω |
| Temperature Compensation | 0–75°C |
| Operating Temperature | -10–85°C |
| Safety Overload | 150% |
| Limit Overload | 200% |
| Temperature Drift | 0.02%FS/°C |
| Long-Term Stability | 0.2%FS/Year |
| Contact Material | 304, 316L Stainless Steel, Ceramic |
| Weight | 2kg |


Q1: What is a submersible level transmitter?
A1: A submersible level transmitter is a liquid level measurement device designed to be immersed directly into a tank, well, reservoir, or other liquid environment. It measures liquid level by detecting hydrostatic pressure and converts the pressure signal into an electrical output, such as 4-20mA or RS485, for monitoring and control systems.
Q2: How does a submersible level transmitter work?
A2: A submersible level transmitter works based on hydrostatic pressure measurement. As the liquid level increases, the pressure at the bottom of the liquid column also increases. The transmitter measures this pressure change and converts it into a proportional electrical signal that represents the liquid level.
Q3: How to choose the right submersible level transmitter?
A3: When selecting a submersible level transmitter, consider factors such as measuring range, cable length, output signal, accuracy, liquid type, and installation conditions. Models with 4-20mA output are commonly used in industrial control systems, while RS485 versions are suitable for digital communication and remote monitoring applications.
Tips: What is the measuring range of the submersible level transmitter?
The SISCO submersible level transmitter supports a wide measuring range from 0 to 50 meters, making it suitable for various liquid level measurement applications, including groundwater wells, reservoirs, water tanks, and industrial storage systems. Different measuring ranges can be customized according to application requirements.
Thank you for buying industrial test and measurement equipment on SISCO.com, all products sold by SISCO and the partner cover a 12 months warranty, effective from the date of receiving the products.
SISCO is responsible for providing free spare parts, and free technical support to assist the customer to repair the defective products until the problem is solved.